Product details:

Get a great night's sleep with the LUCID 4-Inch Gel Memory Foam Mattress Topper. This mattress features a gel memory foam construction that is ventilated to increase airflow and draw excess heat away from your body as you sleep. Features Plush firmness level Gel memory foam Mattress topper 3-lb. density Antimicrobial 4-inch thickness Resistant to dust mites Never needs turning Foam is CertiPUR-US certified Carried in Twin, Twin XL, Full, Queen, King, California King See below for specific dimensions Dimensions Twin: 36.5 inches wide x 73 inches long x 4 inches high Twin XL: 36.5 inches wide x 78 inches long x 4 inches high Full: 51.5 inches wide x 73 inches long x 4 inches high Queen: 58 inches wide x 78 inches long x 4 inches high King: 74 inches wide x 78 inches long x 4 inches high Cal King: 70 inches wide x 82 inches long x 4 inches high Memory Foam Tips Arrives tightly packed in portable box for customer convenience. Remove from packaging within 72 hours to maximize expansion. You can sleep on it the same night it is unwrapped, however allow 48 hours to fully return to its original shape. Vacuum sealing sometimes traps odors. After unwrapping, air for a few hours to eliminate trapped odors.